PIC: Shaquille O'Neal Towers Over Reality Star Girlfriend

Former NBA player Shaquille O'Neal, 39, stepped out with girlfriend Nicole "Hoopz" Alexander on Sunday while shopping in Calabasas, Calif. Though it was an ordinary day for the couple, one thing definitely stood out: their massive height difference.

O'Neal and Alexander aren't the only couple in Hollywood with a huge height difference: While Kris Humphries is 6-foot-9, bride-to-be Kim Kardashian is only 5-foot-2; Kristen Bell measures in at 5-foot-1, while her fiance Dax Shepard is a towering 6-foot-2; and at just 5-foot-5, Eliza Dushku is 14 inches shorter than beau Rick Fox.